CN209716057U - A kind of inside and outside tooth driving device for heavy and medium plate mill breast roll - Google Patents
A kind of inside and outside tooth driving device for heavy and medium plate mill breast roll Download PDFInfo
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- CN209716057U CN209716057U CN201920287784.9U CN201920287784U CN209716057U CN 209716057 U CN209716057 U CN 209716057U CN 201920287784 U CN201920287784 U CN 201920287784U CN 209716057 U CN209716057 U CN 209716057U
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- internal gear
- breast roll
- shaft
- heavy
- transmission shaft
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Abstract
The utility model relates to a kind of inside and outside tooth driving devices for heavy and medium plate mill breast roll, including internal gear, outer tooth shaft and transmission shaft, inside the internal gear insertion breast roll, outer tooth shaft is embedded in transmission shaft head, internal gear and outer tooth shaft, which cooperate, to be driven, it is milled with a ring type deep trough on the internal gear, one is welded on the transmission shaft and protrudes into the matched axle sleeve of the ring type deep trough.The utility model is protruded into the ring type deep trough of internal gear by transmission shaft Upper shaft sleeve, is formed labyrinth structure, is prevented the entrance of roll cooling water, and structure is simple, and waterproof effect is obvious, and the grease storage period is long, and running is steady reliable.
Description
Technical field
The utility model relates to heavy and medium plate mill breast roll technical field, more specifically refer to that one kind is rolled for cut deal
The inside and outside tooth driving device of machine breast roll.
Background technique
Referring to Fig.1, heavy and medium plate mill breast roll 1 is to drive interior external tooth device to rotate by transmission shaft 5 by motor, interior
Gear 4 is embedded in inside breast roll 1 by seam allowance installation form, and is fastened by four bolts 2, and outer tooth shaft 3 passes through hot charging form
It is embedded in 5 head of transmission shaft, when production rolls, torque is transmitted in internal gear 4 and the closely bonding of outer tooth shaft 3, and drive roller-way normally turns
It is dynamic.
However, breast roll is located at work roll two sides, in mill housing, breast roll is impacted by steel billet discount when steel plate rolling
The factors such as power, roll cooling water, high temperature billet steel, frequent positive and negative rotation influence, working environment very severe, and mill housing uses year
Limit is longer, and memorial archway Innerside wear is serious.Original has been lost designed for the O-ring seal for preventing roll cooling water from entering interior external tooth device
It goes to act on, external tooth device in normally opened roll cooling water inflow causes grease to be largely lost, the frequent positive and negative rotation of roller-way, in aggravation
Outer tooth surface abrasion causes flank of tooth sharpening, and serious person causes flank of tooth rounding, forms shaving phenomenon.
In addition, referring to Fig.1, due to the frequent positive and negative rotation of steel billet, steel billet discount impact force, causes internal gear 4 to fasten spiral shell in addition
Bolt 2 loosens, fracture, and internal gear 4 is opposite to be shaken obviously, and the seam allowance position serious wear inlayed, internal gear 4 can not be fixed；External tooth
3 transient acceleration of axis is big, and torque increases with it, and outer tooth shaft 3 causes tooth shaft to be broken due to fatigue often, causes breast roll can not
Normal rotation.
Summary of the invention
The purpose of this utility model is to provide a kind of inside and outside tooth driving devices for heavy and medium plate mill breast roll, with solution
The inside and outside tooth driving device of certainly existing heavy and medium plate mill breast roll is easy to cause the close of inside and outside tooth driving device in steel plate rolling
Waterproof wear-out failure is sealed, the problems such as internal gear fastening bolt is easy to loosen, be broken, and outer tooth shaft stability is poor.
The utility model adopts the following technical solution:
A kind of inside and outside tooth driving device for heavy and medium plate mill breast roll, including internal gear, outer tooth shaft and transmission shaft, institute
It states inside internal gear insertion breast roll, outer tooth shaft is embedded in transmission shaft head, and internal gear and outer tooth shaft, which cooperate, to be driven, described
It is milled with a ring type deep trough on internal gear, one is welded on the transmission shaft and protrudes into the matched axle sleeve of the ring type deep trough.
Further, a waterproof seal is equipped in the ring type deep trough.
Further, the transmission shaft head is equipped with several straight pins, and the straight pin is through transmission shaft and described outer
Tooth shaft is fixedly connected.
Further, the straight pin is three straight pins, and three straight pins are equidistantly in 120 ° around arrangement.
Further, the internal gear and outer tooth shaft are all made of structural alloy steel 30Cr2Ni2Mo material and are made.
Further, the internal gear and outer tooth shaft surface are equipped with a nitriding layer, and nitriding layer is greater than 0.3mm, and surface hardness >
700HV。
By the above-mentioned description to the utility model structure it is found that compared to the prior art, the utility model has following excellent
Point:
1, increase different labyrinth structure in the utility model at external tooth bonding, i.e. the transmission shaft Upper shaft sleeve annular that protrudes into internal gear
In deep trouth, labyrinth structure is formed, the entrance of roll cooling water is prevented, structure is simple, and waterproof effect is obvious, and grease stores the period
Long, running is steady reliable.
2, increase special-shaped waterproof seal, when the axle sleeve on transmission shaft protrudes into ring type deep trough, axle sleeve in ring type deep trough
Waterproof seal is squeezed, confined space is formed, further prevents the entrance of roll cooling water, play dual waterproof effect.
3, internal external tooth material is improved, and nitriding layer is added on surface, increases surface hardness, improves flank of tooth wearability,
Prolong the service life.
4, when outer tooth shaft hot charging insertion transmission shaft head, transmission shaft is connected by straight pin with outer tooth shaft, is increased
The intensity of outer tooth shaft prevents frequently square then leads to breaking axis.
5, internal gear and external tooth shaft head have bevelling, so that easier for installation.
Detailed description of the invention
Fig. 1 is existing inside and outside tooth driving device structural schematic diagram in background technique.
Fig. 2 is the utility model structure diagram.
Fig. 3 is internal gear and outer tooth shaft enlarged diagram in Fig. 2.
Specific embodiment
Illustrate the specific embodiment of the utility model embodiment with reference to the accompanying drawings.
Referring to Fig. 2 and Fig. 3, a kind of inside and outside tooth driving device for heavy and medium plate mill breast roll, including it is internal gear 4, outer
Tooth shaft 3 and transmission shaft 5, internal gear 4 are embedded in inside breast roll 1 by seam allowance installation form, and are locked by four fastening bolts 2
Tightly, outer tooth shaft 3 is embedded in 5 head of transmission shaft by hot charging form, and internal gear 4 and outer tooth shaft 3 cooperate, and transmits torque, band
Dynamic roller-way normal rotation.
Referring to Fig. 2 and Fig. 3, inside and outside the utility model on toothing, using labyrinth structure, i.e., it is milled with therewith on internal gear 4
The ring type deep trough 41 of concentric circles, be welded on transmission shaft 5 one with protrude into the matched axle sleeve 51 of ring type deep trough 41.When interior external tooth
When bonding, 5 Upper shaft sleeve 51 of transmission shaft is protruded into the ring type deep trough 41 of internal gear 4, is formed labyrinth structure, is prevented roll cooling water
Into；Also, increase special-shaped waterproof seal 42 in ring type deep trough 41, when the axle sleeve 51 on transmission shaft 5 protrudes into ring type deep trough
When in 41, axle sleeve 51 squeezes waterproof seal 42, forms confined space, further prevents the entrance of roll cooling water, plays double
Weight waterproof effect, guarantees that roll cooling water cannot be introduced into interior external tooth cover, it is ensured that the effectively lubricating of opposite operating reduces interior external tooth mill
Damage prevents interior external tooth cover shaving phenomenon from occurring.In addition, the 3 head bevelling Jun You of internal gear 4 and outer tooth shaft, so that installation
It is more convenient.
It is when outer 3 hot charging of tooth shaft of the utility model is embedded in 5 head of transmission shaft, three straight pins 6 are equidistant referring to Fig. 2 and Fig. 3
Around arrangement run through transmission shaft 5 in 120 °, be implanted into outer tooth shaft 3, so that transmission shaft 5 is linked to be with outer tooth shaft 3 by straight pin 6
One increases the intensity of outer tooth shaft 3, prevents frequently square then leads to breaking axis, meanwhile, it is welded on transmission shaft 5
Axle sleeve 51, and can effectively prevent straight pin 6 from running out of.
In addition, the utility model internal gear 4 and outer tooth shaft 3 are all made of structural alloy steel referring to Fig. 2 and Fig. 3
30Cr2Ni2Mo material is made, and whole modifier treatment is HB241-286, has higher intensity and toughness, internal external tooth table
Face passes through Nitrizing Treatment, adds nitriding layer, and nitriding layer > 0.3mm, and surface hardness > 700HV further strengthens the inside and outside flank of tooth
Wearability, prolong the service life.
The above is only the specific embodiments of the present invention, but the design concept of the present invention is not limited thereto,
All non-essential modifications to the present invention made by this concept should belong to the row for invading scope of protection of the utility model
For.
Claims (7)
1. a kind of inside and outside tooth driving device for heavy and medium plate mill breast roll, including internal gear, outer tooth shaft and transmission shaft, described
Internal gear is embedded in inside breast roll, and outer tooth shaft is embedded in transmission shaft head, and internal gear and outer tooth shaft, which cooperate, to be driven, feature
It is: is milled with a ring type deep trough on the internal gear, one is welded on the transmission shaft and is matched therewith with the ring type deep trough is protruded into
The axle sleeve of conjunction.
2. a kind of inside and outside tooth driving device for heavy and medium plate mill breast roll, feature exist according to claim 1
In: a waterproof seal is equipped in the ring type deep trough.
3. a kind of inside and outside tooth driving device for heavy and medium plate mill breast roll, feature exist according to claim 1
In: the transmission shaft head is equipped with several straight pins, and the straight pin is fixedly connected through transmission shaft with the outer tooth shaft.
4. a kind of inside and outside tooth driving device for heavy and medium plate mill breast roll, feature according to claim 3 exist
In: the straight pin is three straight pins, and three straight pins are equidistantly in 120 ° around arrangement.
5. a kind of inside and outside tooth driving device for heavy and medium plate mill breast roll, feature exist according to claim 1
In: the internal gear and outer tooth shaft are all made of structural alloy steel 30Cr2Ni2Mo material and are made.
6. a kind of inside and outside tooth driving device for heavy and medium plate mill breast roll, feature exist according to claim 1
In: the internal gear and outer tooth shaft surface are equipped with a nitriding layer.
7. a kind of inside and outside tooth driving device for heavy and medium plate mill breast roll, feature according to claim 6 exist
In: the nitriding layer is greater than 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920287784.9U CN209716057U (en) | 2019-03-07 | 2019-03-07 | A kind of inside and outside tooth driving device for heavy and medium plate mill breast roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920287784.9U CN209716057U (en) | 2019-03-07 | 2019-03-07 | A kind of inside and outside tooth driving device for heavy and medium plate mill breast roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209716057U true CN209716057U (en) | 2019-12-03 |
Family
ID=68685407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920287784.9U Active CN209716057U (en) | 2019-03-07 | 2019-03-07 | A kind of inside and outside tooth driving device for heavy and medium plate mill breast roll |
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| Country | Link |
|---|---|
| CN (1) | CN209716057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845606A (en) * | 2020-12-31 | 2021-05-28 | 汉威广园(广州)机械设备有限公司 | Method for processing taper sleeve |
-
2019
- 2019-03-07 CN CN201920287784.9U patent/CN209716057U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845606A (en) * | 2020-12-31 | 2021-05-28 | 汉威广园(广州)机械设备有限公司 | Method for processing taper sleeve |
| CN112845606B (en) * | 2020-12-31 | 2022-04-05 | 汉威广园(广州)机械设备有限公司 | Method for processing taper sleeve |
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